A box contains $15$ tickets numbered $1, 2, ....... 15$. Seven tickets are drawn at random one after the other with replacement. The probability that the greatest number on a drawn ticket is $9$, is

  • [IIT 1983]
  • A

    ${\left( {\frac{9}{{10}}} \right)^6}$

  • B

    ${\left( {\frac{8}{{15}}} \right)^7}$

  • C

    ${\left( {\frac{3}{5}} \right)^7}$

  • D

    None of these

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